The 'Nymphomaniac' actor claims he intentionally ripped off others for 'a performance art,' which he did with the help of Luke Turner, David Ayer, and Kenneth Goldsmith.

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Shia LaBeouf pulls a Joaquin Phoenix. The actor, who is embroiled in a plagiarism scandal after ripping off comic writer Daniel Clowes and issuing a series of stolen apologies and bizarre messages, claims he did all those antics in the name of "performance art."

Shia posted a lengthy note called "Twitter As Art" and followed it with a manifesto on what performance a#RT was. He wrote, "The problem with American artwork, is a problem of subject matter. Artwork keeps getting entangled with the problems of America itself."

"Performance art has been a way of appealing directly to a large public, as well as shocking audiences into reassessing their own notions of art and its relation to culture," he added. "My twitter '@thecampaignbook' is meta-modernist performance art. A Performative [sic] redress which is all a public apology really is."

The controversial star went on to say that his recent acts of plagiarism were all intentional. They were meant to start discussion about "plagiarism in the digital age," so he said, and also to allow him to channel his "authentic creative imagination."

"All art is either plagarisum [sic] or revolution & to be revolutionary in art today, is to be reactionary. In the midst of being embroiled in acts of intended plagiarism, the world caught me & I reacted," he stated. "The show began. I became completely absorbed, oblivious to things around me."

Like a deja vu, "Her" actor Phoenix did a series of bizarre interviews back in 2009 and announced he was quitting acting to become a rapper. He kept up his "act" until after the mockumentary he did with Casey Affleck, "I'm Still Here", was released in 2010.

As for Shia, the actor claimed he created the "#stopcreating" hashtag, which he used in his most-recent tweets, with the help from "Meta-Modernist" Luke Turner, David Ayer who wrote "Fury" and directed him in the film, and Kenneth Goldsmith, who was appointed as the Museum of Modern Art's first poet laureate.

Both his lengthy posts have been deleted though. It's unclear whether or not the removal is also part of the so-called performance art.